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Page 3474, results 86826 - 86850

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Not all publications have extents, not all extents are completely accurate
Effects of landcover, water redistribution, and temperature on ecosystem processes in the South Plate Basin
Jill Baron, M.D. Hartman, Timothy G.F. Kittel, L.E. Band, D. S. Ojima, R.B. Lammers
1998, Ecological Applications (8) 1037-1051
Over one-third of the land area in the South Platte Basin of Colorado, Nebraska, and Wyoming, has been converted to croplands. Irrigated cropland now comprises 8% of the basin, while dry croplands make up 31%. We used the RHESSys model to compare the changes in plant productivity and vegetation-related hydrological...
Potential overflow of Mojave Creek near disposal site, Edwards Air Force Base, California
Randy L. Dinehart, Jerry G. Harmon
1998, Open-File Report 98-97
Sedimentological evidence in Mojave Creek near Edwards, California, indicates that the largest discharge in the last hundred years near the disposal site of the Main Base Landfill at Edwards Air Force Base was a few hundred cubic feet per second. The distal ends of two alluvial fans on the Mojave...
A preliminary assessment of sources of nitrate in springwaters, Suwannee River basin, Florida
B. G. Katz, H.D. Hornsby
1998, Open-File Report 98-69
A cooperative study between the Suwannee River Water Management District (SRWMD) and the U.S. Geological Survey (USGS) is evaluating sources of nitrate in water from selected springs and zones in the Upper Floridan aquifer in the Suwannee River Basin. A multi-tracer approach, which consists of the analysis of water samples...
Water-quality trends in the Santa Ana River at MWD Crossing and below Prado Dam, Riverside County, California
Carmen A. Burton, John A. Izbicki, Katherine S. Paybins
1998, Water-Resources Investigations Report 97-4173
The Santa Ana River, located in an extensively urbanized basin, drains about 2,670 square miles near Los Angeles, California. Almost all flow in the river, about 200,000 acre-feet annually, is diverted to ponds where it infiltrates and recharges underlying aquifers. About 2 million people are dependent on these aquifers for...
Methods for comparing water-quality conditions among National Water-Quality Assessment Study Units, 1992-1995
Robert J. Gilliom, David K. Mueller, Lisa H. Nowell
1998, Open-File Report 97-589
The National Water-Quality Assessment is based on intensive investigations of stream and ground-water quality in selected major hydrologic basins (study units) of the United States. One objective of the national assessment is to comparatively evaluate water-quality conditions within and among the different study units. Methods were developed to compare the...
Chemistry and isotopic composition of ground water along a section near the Newmark area, San Bernardino County, California
John A. Izbicki, Wesley R. Danskin, Gregory O. Mendez
1998, Water-Resources Investigations Report 97-4179
Chemical and isotopic analyses and flow-meter measurements in pumped wells were used to determine the source, movement, and age of ground water along a section of the valley-fill aquifer from the San Jacinto Fault to the base of the San Bernardino Mountains near the Newmark area in the Bunker Hill...